I have installed "ExynosAbuse-v1.40.apk" and it says: "CURRENT STATUS - Exploit: exploitable".

Don't use Exynos Abuse app to test the exploit.
Use the ExynosExploitDemo apk from chainfire instead.
This will do the check correctly.
Should show a toast message after rebooting, that the Exploit failed.
Please report back here, as I have no time to test it myself in the next few hours.

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